Usefulness (category)
Batch moving records (posts) from one taxonomy to another (from category to tag)
The article discusses how to programmatically move multiple posts from one category to another in WordPress, using a custom function and different methods.
Change HTML symbols (< >) to special symbols when commenting
The article explains how to replace HTML tags PRE and CODE symbols with special characters in comments and articles, and provides a code example that demonstrates the...
Allow special HTML tags in comments
This article explains how to add additional HTML tags to comments and allowed tags for post content in WordPress.
404 trap for non-existent files
The article talks about handling 404 errors for non-existent files in WordPress and suggests two methods for dealing with this issue: using .htaccess or in PHP.